Submarine boat.



A. BHRMANN. SUBMARINE BOAT. APPLIoATIoN FILED um: 2a. 191i.

AL EHRMANN.

SUBMARINE BOAT.

APILIOATION FILED JUNE: 2s, 1911.

Patented. Jan. 16, 1912.

SSEEETS-SHEET 2.

IlJvslhvll 1 11. 111111111111111. SUBMARINB BOAT.

APPLICATION FILED JUNE 23, 1911.

3 SHEETS-SHEET 3.

Patented Jan. 16, 1912.

enteran terasse.

- Specification ci Letters letent.

.pplieatlon filed .Tune 583, 1911. Serial lilo. 634285:?.

To all 'whom 'it 'may conce-m:

Be it known that l, DoLrH EHRMANN, a citizen of the United States,residing at Eureka, in the county of lllclrlherson and State of SouthDakota, have invented certain new and useful improvements in Submarineidea ts, of which the following is a specifica ion. y

rThis .invention has relation to new and useful improvements insubmarine boats and the main object thereof is to provide etlicientmeans fr msing the descent of the boat below the ace of the water andits ascent from under the surface to the surface of the water, whendesired.

lily boat is to be provided with two horizontal and'four verticalcylinders, preferahly. Ordinarily, it is believed,4 the two horizontalcylinders will be suiiicient to lower and raise the boat, but in case ofthe need of further cylinders, the four vertical ones, or any number ofthem that is necessary, can and should be utilized or called intoservice, or, if desired, the vertical cylinders only may be employed.

A minor object of my invention is to provide means for locking thecylinders in place when they have been adjusted to the proper position.

lilith the foregoing and other objects in `view my invention consists ofthenovel features of construction, combination and arrangement of partsas are described in this specification, illustrated in the accompanyingdrawings forming a part thereof and particularly pointed out in theappended claims.

Reference being had to the drawings: Figure l is a vertical sectionalview through my boat disclosing the two horizontal cylinders in sideelevation and two of the Yfour vertical cylinders in vertical section.Fig. 2 is a horizontal section laken through my boat on the line 2 2 ofFig. l, illustrating the four vertical cylinders in top plan view, thehorizontal cylinders being indicated by the dotted lines. Fig. 3 is ahorizontal section through my boat, taken on the line 3-El through thehorizontal cylinders, centrally.

ltefe lring' more particularly to the drawings, in which like numeralsdesignate likeparts throughout, my invention is described as follows:

The boat is provided with four vertical cylinders l, 2, 3 and and twohorizontal cylinders 5 and 6. Each of these cylinders is practicallysimilar, slight did'erences er isting between the horizontal andvertical cylinders which ditlerences will be described fullyhereinafter. Each cylinder provided with a piston 7, which piston hasextending` rearwardly therefrom a piston rod cured tothe platform le bymeans of a plurality of braces l5, which braces are inter posed betweenthe framework and said platform. Said shaft lll is rotatably mounted inthe framework in bearings l@ of the beam 1l of said framework and theend beam 18 thereof. .et hand wheel 19 is provided upon the end of theshaft without the framework' for the rotation of said shaft when it isdesired to draw the piston heads inward or force them outward. lhepiston rods 8 are held in engagement Wit pinions l() by means of a.revolving shaft or roller 2O mounted for rotation between respectivebeams l?, said rollers or revolving shafts arranged oppositely to theirrespective pinions, so that each piston rod will. he interposed betweenits respective pinion and revoluble roller or shaft. ln case thecylinders are vertically disposed they are supported by a platform 2l,in which case the lower end of each cylinder is'secured to itsrespective platform by angle irons 22. ln case thecylinders are arrangedhorizontally they are then supported by bottoni of the boat lraces leare interposed between the framework l2 of eachvhorizontal cylino. Saidpiston rods 8 are each provided4 their respective der and its respectiveplatform, which braces are dispensed with in the vertical cylinders. Thebases 2]. et the vertical' cylinders are simply the outer ends 25 of thecylinders when they are arranged horizontally while the second door orplatform lil of the vertical cylinder is merely a compartment wall 26 inthe horixontel cylinders.

lt'will observed from examination of the drawings that the cylinders areso arranged that the piston rods thereof pass each other withoutinterference. The vertical cylinders are about one-hall' the heightI ofthe boat, thus providing ample space ior operating them and for thevertical movement of the piston rods. The piston rods, if necessary, maypass upward into the tower or cupola.

Braces 27 are interposed between each `ilatliorm 21 and its respectiveplatform 14, said braces aiding in supporting the second platform aswell as assisting to support the whole frame or cylinder and addingstrength to the device. In the horizontal cylinder the braces 27 areinterposed between the partition 26 and the end 26 of each cylinder.

rlhe outer end of each cylinder is slightly reduced thereby producing ashoulder '28 'toi-ming a seat for nthe piston head when in ext-renieoutward position. Annular plates Qt) are provided at the inner end ofthe cylinders and are secured to the second platform in the case of thevertical cylinders by means of nut and bolt connections 30 and in 'thecase of the horizontal cylinders to the partitions 26 also by nut andbolt connertions 30, Said annular plates provided with c iti-al openingsfor the passage of the piston rods. The piston heads 7 are alsoconstructed of suitable material or covered by a suitable material thatis adapted to prevent the leakage of water into the cylinders past thecylinder heads.A

lrovided upon each shaft 1l is a brake 32 which is utilized when thepiston head of its respective cylinder is in proper position. rThisbrake may be clamped upon the outer periphery oi the shaft to which itis mounted by turning a screw-threaded bolt which action draws togetherthe spring arms 34 of the brake securing the shaft against rotati A.coil spring 35 encircles the screwll. threaded bolt and normally securesthe spring arms 34 out ot contact with the shaft.

'it head is provided at the extreme end of each shaft to prevent theoutward movement of the brake during the operation ot thc device.

although l have specifically described the novel features of theconstruction, combination and arrangement of the several parts oi" myinvention, yet I do not confine myself to such construction, combinationand arrangement oif parts but reserve and may exercise the right to makesuch changes therein as do not depart.- Afrom the spirit of theinvention or the scope o't the appended claims.

I'Iaving described my invention, what I claim as A,new and desire tosecure by Letters Patent, is:

l. A submarine boat comprising a plurality of vertical and a pluralityoifhorizontal cylinders, each otl said cylinders provided with a reducedport-ion at its outer end forming a shoulder, an annular plate providedat the opposite end of the cylinder, said plate provided with a centralopening therein, a piston head reciprocally held in each cylinder, eachpiston head binding against the shoulder of its cylinder when the sameis in eXtreme outward posit-ion,

a piston rod extending from the piston head inwardly and protrudingthrough the opening in the plate., and means for the reciprocation ofthe piston heads, said Ameans comprising a rack and a pinion.

2. A submarine boat'comprising a plurality of vert-ical and a pluralityof horizontal cylinders each of said cylinders provided with a reducedportion at its outer end forming a shoulder, an annular plate providedat the opposite end of the cylinder, said plate provided with a centralopening therein, a piston reciprocally held in each cylinder, the pistonhead thereof binding against the shoulder of its cylinder when the sameis in extreme outward position, the piston rod of each piston Aextending inwardly and protruding through the opening in the plate, saidpiston rods provided with a plurality -ot teeth upon one of their edges,means for the reciprocation of each piston head comprising a trame, apinion rotatably mounted within the trame, the teeth of said pinionengaging the teeth ot its respective piston rod, means to secure theteeth of the pinion in engagement with the teeth of said piston rod andmeans for the rotation of said pinion in either direction.

3. A submarine boat comprising a plurality of cylinders which areadapted to receive water without the boat, each of said cylindersprovided with a piston reciprocally held therein, said piston comprisingapiston head and a piston rod extending from the head inwardly, thepiston rod provided with a plurality oli teeth, a trame 'secured to theinner end of the cylinder, a pinion rotatably held in said iframe, meanscomprising a revolving shaft to secure the teeth of the piston red inengagement with the teeth of the pinion, means for the rotation o'tl thepinion in either direction thereby drawing the pinion inward or forcingit outward as desired, and means to lock the shaft upon which saidpinion is keyed against rotation when the piston has l'ieen placed atthe desired point

